A marketplace suspension can turn a healthy business into a cash-flow problem before lunch. The listing disappears. Inventory is inaccessible. Payments are held. Customer service replies arrive in the bland language of an automated system.

That vulnerability is now the subject of a new bill in Congress. Representatives Becca Balint and Nydia Velázquez introduced an Online Sellers Bill of Rights on July 21, aimed at giving independent merchants more due process when large marketplaces act against them.

The proposal is not law. It may never become law in its present form. But it identifies a problem that has been hiding in plain sight: a business can have customers, stock, demand, and a good product, yet still be dangerously exposed if one platform controls access to all four.

The bill would require platforms to show proof of a rule or legal violation before suspending or deactivating a third-party seller. It would require prompt notice when inventory or funds are held on suspicion of unlawful conduct, and release them after 30 days if no proof is found. It also calls for notice of policy changes and useful information when an investigation could lead to a listing or account being removed.

Those are modest protections. They also describe a standard of operational hygiene that sellers should assume they will not receive.

Amazon remains the obvious example because its marketplace accounts for roughly 40 percent of online transactions, according to the lawmakers’ release. But the principle travels. Etsy, Walmart, eBay, TikTok Shop, app stores, payment providers, and social platforms can all become a single point of failure when a business has allowed one account to become its entire distribution system.

There is a practical response, and it does not begin with anger at the platform. Keep an independent customer list, within the consent rules that apply to it. Maintain product data, invoices, supplier contacts, fulfillment records, and policy correspondence somewhere the platform cannot lock. Know which products could move through a second channel. Keep enough cash outside a marketplace settlement cycle to survive a delay.

None of this makes a mistaken suspension harmless. It does turn a potentially fatal event into an operational problem with options, evidence, and a plan for communicating with customers while sales recover in the weeks ahead.

It also changes the way risk should be measured. Most owners track sales by channel, advertising cost, and conversion. Fewer assign a cost to concentration: the share of revenue, stock, and customer access that could be interrupted by one unexplained decision. Put that number on a monthly management report. It makes the exposure visible before an account problem forces the calculation.

There is another distinction worth making. Platforms do have to remove counterfeit, dangerous, and unlawful goods. Fast enforcement protects customers and honest sellers alike. The question is whether speed has to mean opacity. A seller who is told the allegation, shown the relevant evidence, and given a clear route to appeal can correct a real failure or challenge a false one. A seller who receives a template email cannot do either.

The proposed bill is an attempt to put that distinction into law. Its more useful lesson for a small business is simpler: never confuse borrowed reach with owned resilience. The account that brings you customers is valuable. It is not your business.